Paper Finder

Find research papers and arXiv preprints. Give it a DOI or id and it returns the abstract and a free full text.

View on openkrill.app

Hosted MCP Server

npx add-mcp 'https://papers.openkrill.app/mcp'

Installs into Claude Code, Codex, Cursor and more

Documentation

Price

Free

API key

None

Limit

60 calls a minute

Tools

3

Ask your assistant

Find recent open-access papers on RAG evaluation.

What it does

  • Searches Europe PMC and Crossref together for papers on a topic, with an optional start year and an open-access filter
  • Searches arXiv preprints by topic, with optional category, start year and newest-first order
  • Returns authors, year, venue, DOI, citation count and the index each paper came from
  • Shows a free full-text link only when the index confirms one, with its license when stated
  • Gets one paper's abstract by DOI, PubMed id or arXiv id
  • Names the sources and the date they were read in every answer

Tools

  • search_papers Search papers
  • search_arxiv Search arXiv
  • get_paper Get a paper

Connect

https://papers.openkrill.app/mcp

Claude Code:

claude mcp add --transport http papers https://papers.openkrill.app/mcp

Hermes Agent:

printf 'n\ny\n' | hermes mcp add papers --url https://papers.openkrill.app/mcp

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